1Pembuluh darah vaskularisasi otakKELOMPOK D4102010139 CITRA ANGGAR KASIH MASANG102010237 FLAFIANUS REOLELANGWAYAN102012144 PRAHASTA LISTIANING RENNY102010245 TORRY TANDI WIJAYA102013275 NATALIA TAMBUNAN102014023 MELINDA LOTO PATANDIANAN102014044 THANGKE MARGONDA TANDUK10201409 IRENE ANDREA HANDAKA10201423! SHALINY A"P ARULNATHENM#$#%&%'# F#()*+#% K,-.(+,/#0 U(/&-#F#()*+#% (,-.(+,/#0 U0&1,/%&+#% K/&%+,0 K/&-# W#2#0#J*3 A/4)0# U+#/# N.3!5 J#(#/+# B#/#+ 11510N.3 T,*6 70218 5!94920!15 Abstract TheBrain arteriesbranchesbythetwo internal carotid artery andtwovertebral2artery. Fourth artery located in the spatium subarachnoideum , and branchesanastomose on the inferior surface of the brain to form circulus Willis . Branches parscerebralisieophtalmicaartery, arteriacommunicansposterior, choroideaartery,anterior cerebral arteryandthearteriacerebri media. Vertebrobasilaris systemislocated in the posterior cerebral vascularization . This system consists of the vertebralartery and basilar artery . Vertebral artery , subclavian artery branches of the first part ,up to the neck through the foramen processus transversus si cervicales upper vertebrae .Basilar artery , formed from the combination of the two vertebral arteries run up in thegroove on the anterior surface of the pons . Vena cerebri has no muscular tissue in thewalls are very thin , and do not have valves .Keyword : Vascularization, !irculus willis, internal carotid arteryAbstrakA/+,/&.+#(-&6,/-#/#$&.*,$-)##/+,/#/.+&%&0+,/0#-#0-)##/+,/,/+,:/#*&%3K,,;6#+ #/+,/& +,/*,+#( -& -#*#;%6#+&);%):#/#2$0.&-,);5 -#0 2#:#0